FLASH® LITE™ 2.x - Adobe Help and Support

}
mc.curveTo(-r+x, Math.tan(Math.PI/8)*r+y, -r+x, y);
mc.curveTo(-r+x, -Math.tan(Math.PI/8)*r+y, -Math.sin(Math.PI/4)*r+x, -
Math.sin(Math.PI/4)*r+y);
mc.curveTo(-Math.tan(Math.PI/8)*r+x, -r+y, x, -r+y);
mc.curveTo(Math.tan(Math.PI/8)*r+x, -r+y, Math.sin(Math.PI/4)*r+x, -
Math.sin(Math.PI/4)*r+y);
mc.curveTo(r+x, -Math.tan(Math.PI/8)*r+y, r+x, y);
See also
acos (Math.acos method), asin (Math.asin method), atan (Math.atan method),
atan2 (Math.atan2 method), cos (Math.cos method), tan (Math.tan method)
sqrt (Math.sqrt method)
public static sqrt(x:Number) : Number
Computes and returns the square root of the specified number.
Parameters
x:Number - A number or expression greater than or equal to 0.
Returns
Number - A number if parameter x is greater than or equal to zero; NaN (not a number)
otherwise.
Example
The following example uses Math.pow and Math.sqrt to calculate the length of a line.
this.createEmptyMovieClip("canvas_mc", this.getNextHighestDepth());
var mouseListener:Object = new Object();
mouseListener.onMouseDown = function() {
this.origX = _xmouse;
this.origY = _ymouse;
};
mouseListener.onMouseUp = function() {
this.newX = _xmouse;
this.newY = _ymouse;
var minY = Math.min(this.origY, this.newY);
var nextDepth:Number = canvas_mc.getNextHighestDepth();
var line_mc:MovieClip =
canvas_mc.createEmptyMovieClip("line"+nextDepth+"_mc", nextDepth);
line_mc.moveTo(this.origX, this.origY);
line_mc.lineStyle(2, 0x000000, 100);
line_mc.lineTo(this.newX, this.newY);
Math 391